Research Of Modeling And Simulation For Large Thermal Power Unit Based On Matlab/Simulink

With the scale of the power system enlarging and the capacity increasing, simulation has become an important method in the studying, planning, operation and designing of the power system,so the simulation system which can reflect unit performance is necessary. In this paper, basing on analyzes disadvantages of specific simulating software, the algorithm library of the power unit was built on the platform of Matlab/Simulink software for the thermal process of power unit with the rationally simplified dynamic model for system level simulation was set up with the mechanism modeling and the principle of modularization. Then the simulation model of power unit was constructed by joining the module in library and research on its dynamic characteristic under disturbance of full load and 70% full load. The instances manifest that this model can satisfy demand of simulation.